Climateby Month

Mobile, AL weather in May

NOAA 1991-2020 normals and daily records · Mobile all year

May in Mobile: warm and humid, with some rain. Highs 85°F, lows 66°F, rain on about 8 days.

Normal high
85°F
Normal low
66°F
Wet days
8
4.9 in total
Muggy days
20
dew point 65°F+

How May changes from start to finish

Normal values at the start and end of May
May 1May 31
Normal high81°F88°F
Normal low62°F70°F
Chance of a wet day23%34%
Sunrise / sunset6:08 am / 7:30 pm5:50 am / 7:49 pm
Daylight13.4 h14.0 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).

A typical May day

  1. 6 am68°Fdew point 64°F
  2. 9 am77°Fdew point 64°F
  3. Noon82°Fdew point 63°F
  4. 3 pm82°Fdew point 63°F
  5. 6 pm77°Fdew point 64°F
  6. 9 pm71°Fdew point 65°F

NOAA hourly normals (local standard time) from Mobile (12 mi away); average wind 7 mph; clear or few clouds in 41% of daytime hours, mostly cloudy or overcast in 32%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F3 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph21 of 31
  • Hot dayshigh 90°F or more3 of 31
  • Muggy daysdaily mean dew point 65°F or more20 of 31
  • Wet daysat least 0.01 in of rain or melted snow8 of 31
  • Notable rainat least 0.10 in6 of 31
  • Freezing nightslow 32°F or below0 of 31

Average days per May, counted from daily records for each year 1991-2020.

Rain in May

Normal precipitation is 4.9 in; a dry May brings about 2.5 in and a wet one about 7.2 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 2 an inch or more.

How May varies from year to year

  • Warmest May, 1991-20202012: average high 88°F
  • Coolest May2013: average high 80°F
  • Wettest May1991: 13.8 in
  • Driest May1996: 0.5 in
  • Highest reading98°F (May 14, 2018)
  • Lowest reading45°F (May 4, 2013)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

May compared with April and June

AprilMayJune
Normal high78°F85°F90°F
Normal low59°F66°F73°F
Wet days8813
Comfortable days1230
Daylight12.9 h13.7 h14.1 h

Highs change by +7°F from April and +5°F into June.

How Mobile ranks in May

  • Normal high65th warmest of 378 cities; 3rd of 6 in Alabama
  • Wet days142nd driest of 378
  • Comfortable days280th most of 339

What to pack for Mobile in May

  • Light, breathable clothing – highs near 85°F and about 20 muggy days
  • A rain jacket or umbrella – rain on about 8 days
  • A swimsuit – about 21 beach days

Heating and cooling

May has 2 heating degree days and 332 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.

Questions

How hot is Mobile in May?

The normal high is 85°F and the normal low is 66°F. From 1991 to 2020 the hottest May reading was 98°F (May 14, 2018).

Does it rain a lot in Mobile in May?

About 8 days in May have at least 0.01 in of precipitation, and the normal total is 4.9 in. The wettest May in 1991-2020 was in 1991 (13.8 in); the driest was in 1996 (0.5 in).

Is May a good time to visit Mobile?

May ranks 6th of 12 months on our comfort score for Mobile (55 out of 100). It has about 3 comfortable days and about 3 days at 90°F or hotter. The best months are March, April and November.

Where the numbers come from

  • Temperature and frost dates: Mobile Downtown Airport (USW00013838), 4.9 mi SSW of the city center, 26 ft . NOAA normals and daily records, 1991-2020.
  • Rain: Fairhope 2 Ne (USC00012813), 14 mi SE of the city center, 23 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall, snow depth, humidity and wind by hour and cloud cover: Mobile (USW00013894), 12 mi W of the city center, 208 ft (199 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Mobile Downtown Airport (722235-13838), 5.6 mi SSW of the city center, 16 ft . Hourly observations, 1991-2020.